If anyone is looking for the biggest weakness on the 2017 Eagles roster, here it is. Cornerback could be an adventure.

At least this isn't anything new. In 2015, when the team trotted out Nolan Carroll and Byron Maxwell, fans probably thought things couldn't get worse in 2016. They were wrong. Last year, the struggles continued with a combination of Leodis McKelvin, Carroll, Ron Brooks and rookie Jalen Mills.

The good news is the Eagles might finally have some young talent to keep around for a while. Mills, a seventh-rounder last season, got valuable playing time and this year, the team drafted Sidney Jones and Rasul Douglas in the second and third rounds. Jones is still recovering from his Achilles injury, but Douglas could figure into the rotation early.

The team also added veteran Patrick Robinson and brought back Brooks, C.J. Smith and Aaron Grymes.

During the spring, Mills, Robinson and Douglas worked with the first team, but defensive backs coach Cory Undlin said there isn't anything decided yet.

“It’s just going to be who’s going to step up here in training camp and through the preseason," Undlin said. "Who’s going to say, 'Listen, I’m starting here, I’m starting here, I’m going to play the nickel,' and then here’s the backups.

"I like them all right now and we’ll find out how it goes down, and that’s what this whole [offseason] is for, to find out who’s going to rise to the top and who’s going to earn a spot and take it and then hopefully can keep it. We’ll see how that goes."

During the spring, Mills and Robinson worked as the Eagles' cornerbacks in the team's base package. And in the nickel, Mills pushed inside and Douglas took his spot outside. That is the same type of role Brooks had during training camp with the Eagles last season.

Brooks is sort of the forgotten man, coming off a serious leg injury that ended his 2016 season early. He was the team's primary nickel corner last season and when he went down, the team was forced to play Malcolm Jenkins in the slot, which meant putting Jaylen Watkins on the field as a safety.

While Undlin was hesitant to name starters at the end of the spring, it seems likely the Eagles will give Mills every opportunity to keep one of those starting gigs. After that, there are a bunch of guys in the mix for the three jobs.

It's 3rd-and-5 from the Eagles' 30-yard line. Wentz is in shotgun with LeGarrette Blount flanking him. One tight end on the same side. Alshon Jeffery at the top of the screen, Torrey Smith at the bottom. Nelson Agholor (circled) is being given a cushion by Rams cornerback Nickell Roby-Coleman. The aptly named cornerback is the Rams' slot corner in their nickel package.

The running back and tight end stay in to block, which creates a lot of room in the middle of the field for Agholor vs. Roby-Coleman. Wentz is locked in. The Eagles need to get to the 35-yard line for a first down, so Agholor reaches the top of his route at the 39, before cutting back.

You can see there's not much of a window here, but this is a back shoulder throw that has to be perfect.

It's a tight window, and although Wentz hits Agholor in the hands, Roby-Coleman is able to get a paw in there to deflect it to Kayvon Webster, who broke toward the play. Webster picked off the ball on the deflection and the Rams took over in Eagles' territory and scored a few plays later.

This probably looks pretty familiar. It's 3rd-and-8 from the Eagles' 23-yard line. With 1:52 left in a two-point game, they know if they pick up this first down, they can pretty much run down the clock and escape Los Angeles with a win. This is huge.

Same play. This time, Foles is in shotgun with Blount next to him. The tight end on the same side; both will block again. Jeffery and Smith are the wideouts. But we'll focus on Agholor (circled). He's against Roby-Coleman again and has that cushion.

On this particular play, Foles actually threw a better pass than Wentz did in the first quarter. Now, Foles obviously isn't going to be Wentz, but this pass should at least give fans some confidence.

And confidence isn't lacking. At an absolutely pivotal moment of the game, Pederson went back to a play that produced an interception the first time. And he went back to it with his backup quarterback who hasn't really played much all season. It was gutsy, it worked out and it shows the head coach's confidence in his new QB.

On Wednesday, Pederson pointed out Foles and Agholor were able to complete this pass after not working together all week or all season. All those reps have been going to Wentz. Now, Foles will get the chance to work with Agholor and the other starters the rest of the way.

Report: Carson Wentz has surgery on torn left ACL

The surgery was performed by Dr. James Bradley, a Pittsburgh-based orthopedic knee specialist, per Mortensen.

The typical recovery timetable for an NFL player with a torn ACL is 9-12 months.

Two days after Wentz suffered the depressing injury in Los Angeles, he was at the Eagles’ practice facility Tuesday helping Nick Foles game plan for the Giants, even though it was the players’ day off (see story).

While Wentz recovers, the Eagles anticipate he’ll put on his “coaching hat” and do what he can to assist the offense.